Driving mechanism for auxiliary mechanism of bicycle driving device

Application Number: 00108571
Application Date: 2000.05.15
Publication Number: 1301655
Publication Date: 2001.07.04
Priority Information: 1999/12/29 US 09/474916
International: B62M25/06
Applicant(s) Name: Shimano Inc.
Inventor(s) Name: Tetsuka Toshio;Yamanaka Masahiro;Nanko Yoshiaki
Patent Agency Code: 72001
Patent Agent: zeng xiangling
Abstract A drive mechanism for a bicycle transmission assist mechanism includes a crank arm having a drive member. The drive member includes a first abutment facing a forward rotational direction of the crank arm and a non-concave sloped surface facing a rearward rotational direction of the crank arm.